How does acetylene react with the following reagents? Give the corresponding equations and name the product formed in the reactions?
Acetic acid

Explanation

Reaction with Acetic acid : Acethyle on treatment with acetic acid gives vinyl acetate in the `1 ^(st)` step and the given ethylidene acetate. `Hg ^(2+)` ions act as catalyst.
`underset( "acetylene") ( H - C -= C ) - H + CH _(3) COOH overset( H g ^(2+))to underset( " vinyal acetate") ( H _(2) C = CH - OCOCH_(3)) underset( Hg ^(2+)) overset(-CH _(2) COOH) to underset("ethylidene acetate") ( CH _(3) - CH ( OCOCH _(3)) _(2))`